From bc1384b7b4eb6c36b8d288829d61a6d81cd9199e Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Fri, 29 Jun 2018 12:44:52 +0200
Subject: [PATCH] [d3d11] Issue warning when using a command list more than
 once

The way buffers are invalidated can cause issues when the same command
list is submitted multiple times. Games don't seem to need this right
now.
---
 src/d3d11/d3d11_cmdlist.cpp | 13 +++++++++++++
 src/d3d11/d3d11_cmdlist.h   |  5 +++++
 2 files changed, 18 insertions(+)

diff --git a/src/d3d11/d3d11_cmdlist.cpp b/src/d3d11/d3d11_cmdlist.cpp
index b46c9419b..274ee4e2e 100644
--- a/src/d3d11/d3d11_cmdlist.cpp
+++ b/src/d3d11/d3d11_cmdlist.cpp
@@ -52,12 +52,25 @@ namespace dxvk {
     
     for (const auto& chunk : m_chunks)
       cmdList->m_chunks.push_back(chunk);
+    
+    MarkSubmitted();
   }
   
   
   void D3D11CommandList::EmitToCsThread(DxvkCsThread* CsThread) {
     for (const auto& chunk : m_chunks)
       CsThread->dispatchChunk(Rc<DxvkCsChunk>(chunk));
+    
+    MarkSubmitted();
+  }
+  
+  
+  void D3D11CommandList::MarkSubmitted() {
+    if (m_submitted.exchange(true) && !m_warned.exchange(true)) {
+      Logger::warn(
+        "D3D11: Command list submitted multiple times.\n"
+        "       This is currently not supported.");
+    }
   }
   
 }
\ No newline at end of file
diff --git a/src/d3d11/d3d11_cmdlist.h b/src/d3d11/d3d11_cmdlist.h
index d15419ccb..4f7fcef43 100644
--- a/src/d3d11/d3d11_cmdlist.h
+++ b/src/d3d11/d3d11_cmdlist.h
@@ -38,6 +38,11 @@ namespace dxvk {
     UINT         const m_contextFlags;
     
     std::vector<Rc<DxvkCsChunk>> m_chunks;
+
+    std::atomic<bool> m_submitted = { false };
+    std::atomic<bool> m_warned    = { false };
+
+    void MarkSubmitted();
     
   };